Illinois orders 3 GW of battery storage, turning Chicago's vacant lots into prime energy real estate | Clean Energy Briefing — July 28, 2026

TODAY'S LEAD: The state-level mandate is already reshaping land values and deal structures across the metro area, giving storage developers a rare policy runway even as federal clean energy incentives face ongoing uncertainty under the Trump administration.

KEY DEVELOPMENTS

Illinois 3 GW Storage Law Reshapes Chicago Real Estate: A new energy law is driving demand for battery storage sites across the Chicago area, creating a land rush among developers and landlords with available parcels —. Read More: Illinois, Canary Media.
Ameren Missouri Plans 2.1 GW Gas Plant Despite Cost Headwinds: Ameren Missouri is moving forward with a massive new natural gas plant in St. Charles County even as solar-plus-storage costs continue to fall, raising questions about long-term rate impacts —. Read More: CleanTechnica.
ESS and Juniper Sign 500+ MWh Sodium-Ion Storage Deal: ESS Tech and Juniper Energy will deploy more than 500 MWh of sodium-ion battery storage starting with an 80 MWh project in —. Read More: California, CleanTechnica.
Tesla Signs 140 MW Texas Solar PPA with Zelestra: Tesla locked in a power purchase agreement for a 140 MWac solar project in , adding to the company's growing clean energy procurement portfolio —. Read More: Texas, reNEWS.
Ohio's $100M Energy Fund Shuts Out Renewables: The JobsOhio Energy Opportunity Initiative limits its $100 million in funding to natural gas and nuclear projects, blocking solar and wind developers from accessing state capital —. Read More: Ohio Capital Journal.

Solar & Storage

The U.S. battery storage market is building on record momentum. Grid-scale capacity hit 137 GWh at the end of 2025 after installers added 57.6 GWh that year alone. The first quarter of 2026 brought another 9.7 GWh online — a 32% jump over the same period a year earlier — with Texas, California, and Arizona accounting for roughly 80% of the 24 GW in utility-scale battery deployments. For developers watching federal policy whiplash, state-level mandates like Illinois's 3 GW storage order now carry even more weight as bankable demand signals. Read More: projected for full-year 2026.

That Illinois law is doing something unusual: it's making landlords into clean energy players. Property owners in the Chicago metro who have spare industrial or commercial land are fielding calls from storage developers hungry for interconnection-ready sites. The 3 GW target creates a to support multi-year business plans, which matters in a sector where financing depends on regulatory certainty. It also positions Illinois as one of the largest state-level storage mandates outside California and New York. Read More: procurement pipeline large enough.

Chemistry diversity is gaining traction alongside that buildout. ESS Tech and Juniper Energy announced a partnership to deploy more than 500 MWh of sodium-ion battery storage, beginning with an 80 MWh installation in California. Sodium-ion cells avoid the lithium and cobalt supply chains that have drawn scrutiny from both trade policy hawks and ESG-focused investors, and the technology has been closing the performance gap fast. The Juniper deal is in the U.S. to date, a potential proof point that could accelerate utility procurement if the first phase delivers on cost and cycle-life promises. Read More: one of the largest announced sodium-ion commitments.

Meanwhile in the Pacific, Hawaiian Electric filed to expand renewables and energy storage across Oʻahu, Hawaiʻi Island, and Maui, targeting an additional 500 MW of firm generation on Oʻahu alone. The utility, still rebuilding trust after the 2023 Maui wildfires, is framing the procurement as essential to. It would be one of the state's largest-ever clean energy procurements. On the mainland, Tesla signed a 140 MWac solar PPA with Spanish developer Zelestra for a project in Texas, a deal that in ERCOT, where merchant solar margins have thinned and contracted volumes carry a premium. Read More: reaching Hawaii's 100% renewable mandate, adds to Tesla's corporate offtake activity.

Domestic manufacturing got a smaller but notable push: DYCM Power, led by investor Sriram Das, is advancing plans for a solar module assembly line in California. The company is designing its supply chain to comply with current trade and tariff rules — a nontrivial task given the Trump administration's shifting posture on solar imports from Southeast Asia. If DYCM reaches production, it would join a still-thin roster of competing for domestic content bonuses. Read More: California-based panel manufacturers.

Across , rPlus Energies hit milestones on multiple utility-scale projects, while PowerBank Corp. advanced a 3.2 MW solar installation in New York, and battery deployments moved forward in Nebraska and California, according to. Taken together, the week's project pipeline tells a consistent story: developers are pressing ahead on construction even as Washington's signals remain mixed. Read More: Idaho, Solar Builder's weekly tracker.

Wind Energy

Cheyenne, Wyoming Mayor Patrick Collins received authorization to negotiate impact funds tied to Repsol Renewables' 650 MW Laramie Range Wind Project, a development that will spread across 41,220 acres in Laramie County. The city expects roughly $700,000 in mitigation payments to address road wear, emergency services, and other construction-related costs. That figure — barely a dollar per megawatt of nameplate capacity — illustrates how relative to project scale, a friction point that has fueled opposition to wind farms in rural communities nationwide. For Repsol, the negotiation is the latest in a string of local approvals needed before construction, and the dollar amount may rise as talks proceed. Read More: thin local benefit agreements can be.

The Laramie Range project is advancing against a backdrop of continued federal headwinds for wind development. The Trump administration's moratorium on federal wind energy permits, now challenged by a coalition of 18 state attorneys general, has not directly blocked state-permitted projects like this one. But it has chilled investment sentiment and complicated financing for any project that touches federal land or requires federal environmental review. Repsol's ability to move forward on private and state land in Wyoming underscores how permitting jurisdiction increasingly determines which projects survive the current political environment.

Policy & Markets

's $100 million JobsOhio Energy Opportunity Initiative is drawing fire for explicitly excluding renewable energy projects. The fund channels state dollars only to natural gas and nuclear developments, a structure that and sidelines an industry that has been growing rapidly in the state. For solar and storage developers eyeing Ohio — which has seen rising electricity costs and a four-year high in utility disconnections — the exclusion means state capital won't be available to offset interconnection or permitting expenses that competing fossil projects can tap. Read More: Ohio, critics say lacks transparency.

At the federal level, FERC is absorbing more than 3,000 public comments opposing its proposal to expand the blanket certificate program for natural gas infrastructure. The change would double the automatic approval cost threshold from $14.5 million to $29 million, allowing more gas pipeline modifications to skip individual environmental review. The Sierra Club organized the bulk of the comment campaign, arguing the expansion would at a moment when gas infrastructure decisions lock in emissions for decades. For clean energy developers, the proceeding matters less for what it does directly to renewables and more for what it signals about how quickly competing gas capacity can be permitted and built. Read More: weaken oversight.

That tension is playing out in real time in Missouri. Ameren's proposed 2.1 GW gas plant in St. Charles County would be one of the largest new fossil builds in the Midwest, and it arrives as solar-plus-storage costs in the region continue to decline. Consumer advocates and environmental groups are expected to challenge the project in state regulatory proceedings, where Ameren will have to demonstrate that gas for ratepayers over the plant's projected 30-to-40-year life. With turbine and construction costs rising for gas while battery prices trend the opposite direction, the economics may be harder to defend than they were even two years ago. Read More: remains the least-cost option.

LOOKING AHEAD

FERC Blanket Certificate Decision Timeline: The commission will review the 3,000-plus comments on its gas infrastructure proposal; a final rule could reshape how quickly new gas capacity reaches the grid and how much environmental review it faces.
Hawaiian Electric Procurement Bids: Developers should watch for bid deadlines and shortlist announcements tied to HECO's 500 MW firm generation target on Oʻahu — one of the largest island-grid clean energy procurements in the country.
Ameren Missouri Rate Case Showdown: The utility's 2.1 GW gas plant proposal will face scrutiny at the Missouri Public Service Commission, where interveners are expected to argue that solar-plus-storage alternatives could deliver lower long-term costs to ratepayers.

TODAY'S QUICK ANSWERS

Q: What does Illinois's 3 GW storage mandate mean for developers outside the state?

A: It establishes a template. States looking for grid reliability solutions without new gas plants now have a working model for large-scale storage procurement tied to real estate availability. Developers with experience navigating Illinois interconnection queues and zoning will have a head start, but the policy design — linking storage siting to existing commercial and industrial parcels — could be adapted by Michigan, Minnesota, or other Midwest states with aging grid infrastructure and available land near load centers.

Q: Why should investors care about the ESS-Juniper sodium-ion deal?

A: At 500+ MWh, it's among the largest U.S. sodium-ion commitments and a direct test of whether the chemistry can compete at utility scale. If the initial 80 MWh California phase performs on cost and degradation, it could open procurement doors at utilities wary of lithium-ion supply chain risk — especially as tariff uncertainty continues to affect battery cell imports from China and Southeast Asia.

Q: How does Ohio's renewable exclusion from its $100M fund affect project economics there?

A: It creates an uneven playing field. Gas and nuclear developers in Ohio can access state capital for site prep, workforce, and infrastructure costs that solar and storage developers must finance entirely through private markets or federal incentives — incentives that face their own political risk under the current administration. Developers may deprioritize Ohio in favor of states where both state and federal support structures remain intact.

THE BOTTOM LINE: State-level action — from Illinois's 3 GW storage mandate to Ohio's renewable exclusion to Missouri's gas-vs-solar rate case — is now the primary arena shaping where clean energy capital flows, with federal policy increasingly a source of risk rather than direction.